CN109741705B

CN109741705B - Pixel compensation method and device of display panel

Info

Publication number: CN109741705B
Application number: CN201910239398.7A
Authority: CN
Inventors: 赖青俊; 朱绎桦
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2018-06-29
Filing date: 2019-03-27
Publication date: 2022-04-08
Anticipated expiration: 2039-03-27
Also published as: CN108648682A; CN109741705A

Abstract

The invention discloses a pixel compensation method and a pixel compensation device of a display panel, which relate to the technical field of display, and aim at the display panel with an excavated area, when the display area surrounds the excavated area, a sub-pixel to be compensated in the display panel can be determined at first, and as one data line is connected with a plurality of sub-pixels, the gray scale of the sub-pixel to be compensated can be compensated by utilizing the coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and the adjacent data line and the gray scale of the sub-pixel at the periphery of the sub-pixel to be compensated, so that the display effect is improved.

Description

Pixel compensation method and device of display panel

The present disclosure claims priority of chinese patent publication filed by chinese patent office on 29/06/29/2018 under publication number 201810712007.4, entitled "a pixel compensation method and apparatus", the entire contents of which are incorporated by reference into the present disclosure.

Technical Field

The present invention relates to the field of display technologies, and in particular, to a pixel compensation method and device for a display panel.

Background

With the development of display screen technology, a comprehensive screen is produced, and compared with an ordinary display screen, the display area has a larger occupation ratio and an ultra-narrow frame, so that the visual perception of a viewer can be greatly improved. Because the proportion of occupying of display area is bigger and bigger, and the proportion of occupying of non-display area is littleer and smaller for leave on the space of camera, earphone isotructure also littleer, can set up for this reason and dig the hole region and surrounded by display area, set up camera and earphone isotructure in digging the hole region, so can save non-display area's area occupied greatly, be favorable to the design of narrow frame more.

However, the hole digging region may affect the wiring of the display region, thereby affecting the display effect of the display. Therefore, how to improve the display effect of the display in which the hole digging region is arranged in the display region is a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The embodiment of the invention provides a pixel compensation method and device of a display panel, which are used for improving the display effect of a display with a hole digging area in a display area.

The embodiment of the invention provides a pixel compensation method which is applied to a display panel, wherein the display panel comprises a non-display area, a display area and a hole digging area, the non-display area surrounds the display area, and the display area surrounds the hole digging area; the display panel also comprises a plurality of data lines which are arranged in parallel, and at least part of the data lines pass through the hole digging area; the pixel compensation method comprises the following steps:

determining sub-pixels to be compensated in pixels of the display panel;

and compensating the gray scale of the sub-pixel to be compensated according to the coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and the adjacent data line and the gray scale of the sub-pixel positioned at the periphery of the sub-pixel to be compensated.

The coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and the adjacent data line comprises: and coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and at least one adjacent data line.

On the other hand, the embodiment of the invention further provides a pixel compensation device, which is applied to a display panel, wherein the display panel comprises a non-display area, a display area and a hole digging area, the non-display area surrounds the display area, and the display area surrounds the hole digging area; the display panel also comprises a plurality of data lines which are arranged in parallel, and at least part of the data lines pass through the hole digging area; the pixel compensation device includes:

the device comprises a determining unit, a compensation unit and a compensation unit, wherein the determining unit is used for determining sub-pixels to be compensated in pixels of a display panel;

and the compensation unit is used for compensating the gray scale of the sub-pixel to be compensated according to the coupling capacitance between the data line and the adjacent data line which are correspondingly connected with the sub-pixel to be compensated and the gray scale of the sub-pixel positioned at the periphery of the sub-pixel to be compensated.

On the other hand, an embodiment of the present invention further provides a display device, including: the pixel compensation device provided by the embodiment of the invention.

The invention has the following beneficial effects:

the embodiment of the invention provides a pixel compensation method and device of a display panel, aiming at the display panel with an excavation region, when the display region surrounds the excavation region, a sub-pixel to be compensated in the display panel can be determined firstly, and as one data line is connected with a plurality of sub-pixels, the gray scale of the sub-pixel to be compensated can be compensated by utilizing the coupling capacitance between the data line and the adjacent data line which are correspondingly connected with the sub-pixel to be compensated and the gray scale of the sub-pixel at the periphery of the sub-pixel to be compensated, so that the display effect is improved.

Drawings

Fig. 1 is a schematic structural diagram of a display panel provided in an embodiment of the present invention;

FIG. 2 is a flow chart of a pixel compensation method provided in an embodiment of the present invention;

FIG. 3 is a partially enlarged schematic view of the solid line frame 1 of FIG. 1;

FIG. 4 is a schematic structural diagram illustrating a distribution relationship between data lines and sub-pixels according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a multiplexer provided in an embodiment of the present invention;

FIG. 6 is a schematic diagram of another multiplexer according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a pixel compensation device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a display device provided in an embodiment of the present invention.

Detailed Description

The following describes in detail a specific implementation of a pixel compensation method and device for a display panel according to an embodiment of the present invention with reference to the accompanying drawings. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The inventor finds in research that the display panel shown in fig. 1 includes: a hole-digging area W, a display area A surrounding all the hole-digging areas W, and a non-display area B surrounding the display area A; the hole digging area W can be used for arranging structures such as a camera, a sensor, an inductor or a receiver; of course, the number of the drilled regions W is not limited to 1, and a plurality of drilled regions W may be provided, and the shape of the drilled regions W may be any shape, and is not particularly limited, and the drilled regions W in fig. 1 are illustrated as being circular. The display panel further includes a plurality of data lines (e.g., D1-D4) arranged in parallel, and a portion of the data lines can pass through the hole-digging area W, specifically, as shown in fig. 1, three data lines labeled as D1, D2 and D3 pass through the hole-digging area W, and since a camera and other structures are arranged in the hole-digging area W, the borders (border, such as sparse black dot filling regions) in the hole digging region W are narrow, and when D1-D3 pass through the hole digging region W, they need to pass through the border in the hole digging region W, so that D1 to D3 are not straight as a whole, but are curved in the excavated area W, so that, near the cutout region W, the spacing L3 between D1 and its left-side adjacent data line (labeled D4), and the spacing L4 between D1 and D2 is smaller than the spacing at other locations (away from the cored area W), as shown in fig. 1 for L3 and L4, which are both smaller than L1; similarly, for D3, the spacing L2 between D3 and its right-side adjacent data line (labeled as D5) near the cut out region W is also smaller than the spacing at other locations (locations away from the cut out region W), as shown by L2 being smaller than L1 in fig. 1.

In the actual manufacturing of the display panel, in the area far away from the hole digging area W, the distance L1 between two adjacent data lines is not less than 10 μm, and mutual interference is not generated generally; in the vicinity of the hole digging region W, L2, L3 and L4 may be only about 3 μm, so that the distance between D1 and D4 is small, the distance between D1 and D2 is small, and the distance between D3 and D5 is small, which interfere with each other and finally affect the display effect.

Therefore, in view of the above display panel, an embodiment of the invention provides a pixel compensation method for improving the display effect of the display panel.

It should be noted that, the pixel compensation method provided in the embodiment of the present invention is directed to a display panel having a cutout region in a display region, but the number, the arrangement position, and the arrangement shape of the cutout regions are not specifically limited, and the cutout region is provided in the display region, which all fall within the scope of the present invention.

Specifically, the pixel compensation method provided by the embodiment of the present invention, as shown in fig. 2, may include:

s201, determining sub-pixels to be compensated in pixels of a display panel;

s202, compensating the gray scale of the sub-pixel to be compensated according to the coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and the adjacent data line and the gray scale of the sub-pixel positioned at the periphery of the sub-pixel to be compensated.

The coupling capacitance between the data line correspondingly connected to the sub-pixel to be compensated and the adjacent data line can be understood as including the coupling capacitance between the data line correspondingly connected to the sub-pixel to be compensated and at least one adjacent data line.

For the display panel, by using the pixel compensation method provided by the embodiment of the invention, the sub-pixel to be compensated in the display panel can be determined at first, and since one data line is connected with a plurality of sub-pixels, the gray scale of the sub-pixel to be compensated can be compensated by using the coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and the adjacent data line and the gray scale of the sub-pixel around the sub-pixel to be compensated, so as to improve the display effect.

In a specific implementation, in order to determine the sub-pixels to be compensated, step S201 in the embodiment of the present invention may specifically include:

and determining the sub-pixels to be compensated in the pixels of the display panel according to the input sequence of the gray scale of the sub-pixels in each row in the display panel and the distance between any two adjacent data lines.

Specifically, the display panel may include: as shown in fig. 3, fig. 3 is a partially enlarged schematic view of a solid-line frame 1 in fig. 1, and each pixel 2 includes: red sub-pixel R, green sub-pixel G and blue sub-pixel B, and a column of sub-pixels only has one color; the display panel may further include: the multiplexer 3 connected to the data lines, as shown in fig. 1, is used for inputting gray scale signals to the data lines to realize a display function.

When the multiplexer 3 inputs a gray-scale signal for each data line, the gray-scale signal may be input as follows: and sequentially inputting gray scale signals to the data lines correspondingly connected with the sub-pixels with different colors. For example, gray scale signals are simultaneously input to the data lines correspondingly connected to the red sub-pixel, then gray scale signals are simultaneously input to the data lines correspondingly connected to the green sub-pixel, and finally gray scale signals are simultaneously input to the data lines correspondingly connected to the blue sub-pixel.

If the distance between the adjacent data lines is too small according to the input mode, the data line for inputting the gray-scale signal at the back generates interference on the data line for inputting the gray-scale signal at the front, namely the data line for inputting the gray-scale signal at the front is interfered by the signal of the data line for inputting the gray-scale signal at the back; for example, in the structure shown in fig. 3, if the sub-pixel connected correspondingly to D1 is a green sub-pixel G, and the sub-pixel connected correspondingly to the data line D4 located on the left side of D1 is a red sub-pixel R, then the gray scale signal is input first to D4, and then the gray scale signal is input after D1, so that D4 is interfered by the gray scale signal on D1; for example, if the sub-pixel corresponding to D2 is a blue sub-pixel B and the sub-pixel corresponding to D1 is a green sub-pixel G, then the gray scale signal is input first to D1, and the gray scale signal is input last to D2, so that D1 is interfered by the gray scale signal on D2, and D2 is not interfered by the last input signal in each data line.

Therefore, based on the above analysis, in the embodiment of the present invention, determining the sub-pixels to be compensated in the pixels of the display panel according to the input order of the gray scales of the sub-pixels in each column of the display panel and the distance between any two adjacent data lines may specifically include:

determining the input sequence of the gray scales of the sub-pixels in each row as follows: each row of red sub-pixels, each row of green sub-pixels and each row of blue sub-pixels; wherein, each row of sub-pixels with the same color inputs the gray scale at the same time;

determining whether the distance between any two adjacent data lines meets a preset condition;

when the distance between any two adjacent data lines is determined to meet a preset condition, determining that sub-pixels to be compensated exist in the display panel, and determining each red sub-pixel and each green sub-pixel which are correspondingly connected with the data lines meeting the preset condition as the sub-pixels to be compensated; wherein, a column of sub-pixels is correspondingly connected with a data line.

The preset condition may be: the distance between any two adjacent data lines is smaller than a preset threshold, that is, the distance between two adjacent data lines at one position is smaller than the preset threshold, and the condition that the distance meets the preset condition can be judged; based on this, the data lines satisfying the preset condition may be: the data line passes through the hole digging area, and the data line which is adjacent to the data line passing through the hole digging area and is positioned outside the hole digging area.

As shown in fig. 1 and 3, taking D1 and D2 as examples, although the distance between D1 and D2 is L1 in the region outside the solid line frame 1, when the distance between D1 and D2 is L4 in the hole digging region W, it is obvious that L4 is much smaller than L1, and in the actual manufacturing process, L1 is generally 10 μm, and L4 may be as small as 3 μm, so D1 and D2 are data lines satisfying the preset condition. Similarly, D3 and D5 are data lines satisfying a predetermined condition.

Therefore, if the gray levels of the sub-pixels in each row are input in sequence: when each column of red sub-pixels, each column of green sub-pixels, and each column of blue sub-pixels are combined with the partial schematic diagram shown in fig. 3, the red sub-pixels R correspondingly connected to D4 and D3 are all sub-pixels to be compensated, and the green sub-pixels G connected to D1 and D5 are also all sub-pixels to be compensated.

In practical implementation, the gray scale signals are not necessarily input to the correspondingly connected data lines according to the input sequence of the red sub-pixels, the green sub-pixels and the blue sub-pixels of each row, but may also be input according to the following sequence: sequentially inputting green sub-pixels of each row, blue sub-pixels of each row and red sub-pixels of each row, and under the premise that the distance between adjacent data lines meets a preset condition, at the moment, the data lines correspondingly connected with the green sub-pixels are interfered by signals respectively from the data lines correspondingly connected with the blue sub-pixels and the red sub-pixels; the data line connected with the blue sub-pixel is interfered by the signal from the data line connected with the red sub-pixel; for the red sub-pixel, the gray scale signal is input last, so that the red sub-pixel is not interfered. Based on this, the green sub-pixel and the blue sub-pixel, to which the data line satisfying the preset condition is correspondingly connected, may be determined as the sub-pixel to be compensated. Therefore, in this case, as shown in fig. 3, the green sub-pixel G connected to D1 and D5 is determined as the sub-pixel to be compensated, and the blue sub-pixel B connected to D2 is determined as the sub-pixel to be compensated.

Of course, in addition to the above, the following may be also possible: on the premise that the distance between adjacent data lines meets a preset condition, the data lines correspondingly connected with the blue sub-pixels are interfered by signals from the data lines correspondingly connected with the red sub-pixels and the green sub-pixels respectively; the data line correspondingly connected with the red sub-pixel can be interfered by signals from the data line correspondingly connected with the green sub-pixel; for the green sub-pixel, since it is the last input gray scale signal, it will not be interfered. Based on this, the blue sub-pixel and the red sub-pixel, which are correspondingly connected to the data line satisfying the preset condition, can be determined as the sub-pixels to be compensated. Therefore, in this case, as shown in fig. 3, the red subpixel R connected to D4 and D3 is determined as a subpixel to be compensated, and the blue subpixel B connected to D2 is determined as a subpixel to be compensated.

Therefore, in combination with the above analysis, it can be determined which sub-pixels are determined as the sub-pixels to be compensated, which has a very important relationship with the gray scale input order of each row of sub-pixels, so when determining the sub-pixels to be compensated, the gray scale input order of each row of sub-pixels needs to be determined first.

The following embodiments are all sequentially according to the input sequence of the gray levels of the sub-pixels in each row: the red subpixels in each column, the green subpixels in each column, and the blue subpixels in each column will be described.

In the specific implementation, in order to implement gray scale compensation on the sub-pixel to be compensated and improve the display effect, in step S202 in the embodiment of the present invention, the compensation on the gray scale of the sub-pixel to be compensated according to the coupling capacitance between the data line correspondingly connected to the sub-pixel to be compensated and the adjacent data line, and the gray scale of the sub-pixel located around the sub-pixel to be compensated may specifically include:

determining coupling capacitance between a data line correspondingly connected with a sub-pixel to be compensated and an adjacent data line;

when determining the coupling capacitance between the data line correspondingly connected to the sub-pixel to be compensated and the adjacent data line, the input order of the gray scale of the sub-pixels in each row determined in the above description may be determined, that is, the input order of the gray scale of the sub-pixels in each row is: for each column of red sub-pixels, each column of green sub-pixels, and each column of blue sub-pixels, the coupling capacitor may include: coupling capacitors between the data lines correspondingly connected with the red sub-pixels to be compensated and two adjacent data lines on the left side and the right side respectively; for the green sub-pixel to be compensated, the coupling capacitance may include: and coupling capacitors are arranged between the data lines correspondingly connected with the green sub-pixels to be compensated and the adjacent data lines on the left side and the right side respectively.

For example, as shown in fig. 4, only six data lines and sub-pixels respectively connected to the data lines are shown in the figure, and if the distance between any positions of the six data lines is smaller than a preset threshold, the 6 data lines shown in the figure are sequentially marked as Rn-1, Gn-1, Bn-1, Rn, Gn and Bn from left to right, where Rn-1 represents a data line correspondingly connected to an n-1 th column of red sub-pixels, in a similar manner, Gn-1 represents a data line correspondingly connected to an n-1 th column of green sub-pixels, Bn-1 represents a data line correspondingly connected to an n-1 th column of blue sub-pixels, Rn represents a data line correspondingly connected to an n th column of green and red sub-pixels, Gn represents a data line correspondingly connected to an n th column of green sub-pixels, and Bn represents a data line correspondingly connected to an n th column of blue sub-pixels.

Because gray scale signals are input to the data line corresponding to the red sub-pixel firstly, then gray scale signals are input to the data line corresponding to the green sub-pixel, and finally gray scale signals are input to the data line corresponding to the blue sub-pixel, for Rn, the Rn is interfered by Gn-1, Bn-1, Gn and Bn, so that the coupling capacitance between the Rn and the adjacent data line is as follows: and Gn-1, Bn-1, Gn and Bn respectively form coupling capacitance with Rn. For Gn, the interference of Bn-1 and Bn is received, so the coupling capacitance between Gn and the adjacent data line is as follows: bn-1 and Bn respectively form coupling capacitance with Gn.

That is, the coupling capacitance between the data line correspondingly connected to the sub-pixel to be compensated and the adjacent data line may include: and coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and at least one adjacent data line.

Determining the gray scale of a specific sub-pixel adjacent to the sub-pixel to be compensated in the same row;

wherein, the input sequence of the gray scales of the sub-pixels in each row is determined to be: when each row of red sub-pixels, each row of green sub-pixels and each row of blue sub-pixels are arranged, and when the sub-pixels to be compensated are the red sub-pixels to be compensated, the specific sub-pixels are the green sub-pixels and the blue sub-pixels which are in the same row as the red sub-pixels to be compensated and are adjacent left and right; when the sub-pixel to be compensated is the green sub-pixel to be compensated, the specific sub-pixel is a blue sub-pixel which is adjacent to the green sub-pixel to be compensated in the left and right directions and has the same row with the green sub-pixel to be compensated.

For example, referring to fig. 4, each sub-pixel is labeled first, and the labeling result can be seen in the figure, when determining the gray scale of a specific sub-pixel, it is first necessary to determine the position of the specific sub-pixel, and R is used as the position of the specific sub-pixel_mnFor example, the specific sub-pixel is G_m(n-1)、B_m(n-1)、G_mnAnd B_mn(ii) a For G_mnIn other words, the specific sub-pixel is B_m(n-1)And B_mn。

Determining the gray scale of the previous sub-pixel adjacent to the specific sub-pixel in the same row;

the gray scale input time of the specific sub-pixel is later than that of the adjacent previous sub-pixel in the same row; for example, as shown in FIG. 4, if the specific sub-pixel is B_mnThe last sub-pixel adjacent to the same column is B_(m-1)n(ii) a If the specific sub-pixel is G_mnThe last sub-pixel adjacent to the same column is G_(m-1)n(ii) a Similarly, if the specific sub-pixel is B_m(n-1)The last sub-pixel adjacent to the same column is B_(m-1)(n-1)(ii) a If the specific sub-pixel is G_m(n-1)The last sub-pixel adjacent to the same column is G_(m-1)(n-1)。

Determining a gray scale difference value between the specific sub-pixel and the adjacent previous sub-pixel in the same row;

fifthly, determining a gray scale compensation value of the sub-pixel to be compensated according to the determined coupling capacitance and the gray scale difference value;

specifically, the following formula can be adopted to calculate the gray scale compensation value of the sub-pixel to be compensated;

V_Rnm＝[△V_G(n-1)m×C_{n_RGL}+△V_Gnm×C_{n_RGR}+△V_B(n-1)m×C_{n_RBL}+△V_Bnm×C_{n_RBR}]/C_Rn；

V_Gnm＝(△V_B(n-1)m×C_{n_GBL}+△V_Bnm×C_{n_GBR})/C_Gn；

wherein, V_RnmIs shown atGray scale compensation value V of red sub-pixel to be compensated in m-th row of red sub-pixels in n-th row_GnmIndicating the gray scale compensation value, DeltaV, of the green sub-pixel to be compensated in the m-th row of the green sub-pixels in the n-th row_G(n-1)mRepresents the gray scale difference value between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the green sub-pixels of the n-1 th row, DeltaV_GnmIndicating the gray scale difference, Δ V, between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the n-th row of green sub-pixels_B(n-1)mRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-1 th row, DeltaV_BnmRepresenting the gray scale difference between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-th row, C_{n_RGL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RGR}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the right side, C_{n_RBL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RBR}Represents the coupling capacitance between the correspondingly connected data line in the red sub-pixel of the nth column and the correspondingly connected data line of the blue sub-pixel of the nth column adjacent to the right side, C_{n_GBL}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_GBR}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel in the nth column and the data line correspondingly connected with the blue sub-pixel in the nth column adjacent to the right side, C_RnA basic capacitance C of the data line correspondingly connected with the red sub-pixel in the nth column_GnAnd the basic capacitance of the data line correspondingly connected with the green sub-pixel in the nth column is represented, n is not less than 1, and m is not less than 0.

For example, in conjunction with the partial schematic diagram shown in FIG. 3, to facilitate understanding and explanation, the partial pixels are labeled and the labeling results are obtainedSee the bottom right corner of the sub-pixel; for the sub-pixel P7 to be compensated connected to D3, the following formula is combined: v_P7＝[(V_P3-V_P4)×C_D3-D1+(V_P5-V_P6)×C_D3-D2+(V_P9-V_P10)×C_D3-D5+(V_P11-V_P12)×C_D3-D6]/C_D3. Since only D1-D3 are located in the hole digging region W, and D1 and D2 are located in the left side border region and D3 is located in the right side border region of the hole digging region W, respectively, for D3, the distance between D3 and D5 is smaller, and the distances between D3 and D2, D3 and D1, and D3 and D6 are larger, so the coupling capacitance between them is smaller and can be ignored, and therefore, the above calculation formula can be further expressed as: v_P7＝[(V_P9-V_P10)×C_D3-D5]/C_D3. And due to V_P9And V_P10The values of (A) and (B) are both derived from the driver IC, so that both values can be obtained from the driver IC, C_D3-D5The coupling capacitance between D3 and D5 can be obtained by the capacitance calculation formula_D3Is the basic capacitance on D3 (such as the coupling capacitance between D3 and other signal lines), therefore, the compensation value V needed by P7 can be calculated_P7So that the compensation is performed in advance and then the compensated gray scale is inputted into the P7 before the gray scale signal is inputted into the P7 through the D3 to improve the display effect.

For another example, for the sub-pixel P9 to be compensated connected to D5, the following formula is combined to obtain: v_P9＝[(V_P5-V_P6)×C_D5-D2+(V_P11-V_P12)×C_D5-D6]/C_D5Since D2 is located in the left border of the excavated area W and D5 is a normal area located outside the right side of the excavated area W, the distance between D2 and D5 is large, the coupling capacitance between D5 and D6 is small and can be ignored, and the coupling capacitance between D5 and D6 is L1, so that V is obtained_P9That is, no compensation is required for the gray level of P9.

And step six, compensating the gray scale of the sub-pixel to be compensated according to the gray scale compensation value of the sub-pixel to be compensated.

That is to say, before inputting the gray scale to the sub-pixel to be compensated, the calculated compensation value is used for performing compensation in advance, and then the compensated gray scale is input to the sub-pixel to be compensated, so that the gray scale of the sub-pixel to be compensated is compensated, and the display effect is improved.

In the embodiment of the present invention, when the gray scale of the sub-pixel to be compensated is compensated:

in one embodiment, the input order of the gray levels of the sub-pixels in each row is optionally: when the gray scales are input to the sub-pixels in the rows with the same color at the same time, and the gray scale compensation value can be calculated according to the formula provided by the embodiment of the invention when the gray scales are input to the sub-pixels in the rows with different colors in sequence, so that the gray scales of the sub-pixels to be compensated are compensated.

The input order of the gray levels of the sub-pixels in each row is: when the gray scales are input to the sub-pixels of the same row with the same color at the same time, and the gray scales are input to the sub-pixels of the different rows with the different colors sequentially, the structure of the multiplexer 3 is shown in fig. 5, wherein the multiplexer 3 includes: a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, and a sixth transistor T6, a first control signal line CK1 controls the first transistor T1 and the fourth transistor T4, a second control signal line CK2 controls the second transistor T2 and the fifth transistor T5, and a third control signal line CK3 controls the third transistor T3 and the sixth transistor T6; the multiplexer 3 has two signal input terminals IN1 and IN2, respectively, and six signal output terminals electrically connected to the six data lines, respectively.

Specifically, referring to the structure shown in fig. 5, the operation process of the multiplexer 3 is:

when the first control signal line CK1 inputs an active control signal, the first transistor T1 and the fourth transistor T4 are turned on, the first transistor T1 transmits the source signal input by IN1 to the data line electrically connected to one column of red sub-pixel cells R, and the fourth transistor T4 transmits the source signal input by IN2 to the data line electrically connected to the other column of red sub-pixel cells R.

When the second control signal line CK2 inputs an active control signal, the second transistor T2 and the fifth transistor T5 are turned on, the second transistor T2 transmits the source signal input by IN1 to a data line electrically connected to one column of green sub-pixel cells G correspondingly, and the fifth transistor T5 transmits the source signal input by IN2 to a data line electrically connected to the other column of green sub-pixel cells G correspondingly.

When the third control signal line CK3 inputs an active control signal, the third transistor T3 and the sixth transistor T6 are turned on, the third transistor T3 transmits the source signal input by IN1 to the data line electrically connected to one column of blue sub-pixel cells B, and the sixth transistor T6 transmits the source signal input by IN2 to the data line electrically connected to the other column of blue sub-pixel cells B.

That is, by the operation of the multiplexer 3, when a gray-scale signal is input to each data line, the gray-scale signal can be input as follows: the gray scales are input to the sub-pixels in the rows with the same color at the same time, and the gray scales are input to the sub-pixels in the rows with different colors in sequence.

When the gray-scale signal is input in such an input manner, when the distance between adjacent data lines is too small, the data line to which the gray-scale signal is input later interferes with the data line to which the gray-scale signal is input earlier, that is, the data line to which the gray-scale signal is input earlier interferes with the data line to which the gray-scale signal is input later. Therefore, in the input mode of the gray-scale signal, the coupling capacitor may include: the compensation device comprises a coupling capacitor between a data line correspondingly connected with a sub-pixel to be compensated and at least one data line adjacent to the left side, and a coupling capacitor between a data line correspondingly connected with a sub-pixel to be compensated and at least one data line adjacent to the right side. Accordingly, the specific sub-pixel comprises at least one sub-pixel adjacent to the left side of the same row of the sub-pixel to be compensated, and at least one sub-pixel adjacent to the right side of the same row of the sub-pixel to be compensated. For specific description of the coupling capacitor and the specific sub-pixel, reference may be made to the above description, and repeated descriptions are omitted.

Therefore, if the gray scale signal is input according to the input method, when the gray scale compensation value of the sub-pixel to be compensated is calculated, the gray scale compensation value needs to be calculated according to the coupling capacitance determined in the content and the gray scale difference determined in the content, so that the accuracy of the obtained gray scale compensation value is ensured, the interference can be effectively compensated, and the display effect is improved. Of course, the specific calculation process of the gray-scale compensation value can be referred to the above contents, and repeated descriptions are omitted.

In another embodiment, the input order of the gray levels of the sub-pixels in each row is optionally: gray scale signals are input successively to the data lines correspondingly connected to the sub-pixels in adjacent rows, and when signals are input simultaneously to the data lines correspondingly connected to the sub-pixels in each row arranged at intervals, a gray scale compensation value (see the following contents) needs to be calculated according to a formula provided in the following contents, so as to compensate the gray scale of the sub-pixels to be compensated.

To explain this, the input order of the gray levels of the subpixels in each row is: when gray scale signals are successively input to the data lines correspondingly connected to the sub-pixels in adjacent rows, and signals are simultaneously input to the data lines correspondingly connected to the sub-pixels in each row arranged at intervals, the structure of the multiplexer 3 may be as shown in fig. 6, where the multiplexer 3 includes: a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, and a sixth transistor T6, a first control signal line CK1 controls the first transistor T1, the third transistor T3, and the fifth transistor T5, and a second control signal line CK2 controls the second transistor T2, the fourth transistor T4, and the sixth transistor T6; the multiplexer 3 has three signal input terminals IN1, IN2, and IN3, respectively, and six signal output terminals electrically connected to the six data lines, respectively.

Specifically, referring to the structure shown in fig. 6, the operation process of the multiplexer 3 is:

when the first control signal line CK1 inputs an active control signal, the first transistor T1, the third transistor T3 and the fifth transistor T5 are turned on, the first transistor T1 transmits a source signal input by IN1 to a data line electrically connected to one column of red sub-pixel cells R, the third transistor T3 transmits a source signal input by IN2 to a data line electrically connected to one column of blue sub-pixel cells B, and the fifth transistor T5 transmits a source signal input by IN3 to a data line electrically connected to one column of green sub-pixel cells G.

When the second control signal line CK2 inputs an active control signal, the second transistor T2, the fourth transistor T4 and the sixth transistor T6 are turned on, the second transistor T2 transmits the source signal input by IN1 to a data line electrically connected to another column of green sub-pixel cells G correspondingly, the fourth transistor T4 transmits the source signal input by IN2 to a data line electrically connected to another column of red sub-pixel cells R correspondingly, and the sixth transistor T7 transmits the source signal input by IN3 to a data line electrically connected to another column of blue sub-pixel cells B correspondingly.

That is, when the multiplexer 3 inputs a gray-scale signal for each data line, the gray-scale signal is input as follows: gray scale signals are input successively to data lines correspondingly connected with sub-pixels in adjacent rows, and signals are input simultaneously to data lines correspondingly connected with sub-pixels in each row arranged at intervals.

If the gray-scale signals are input according to the input method, when the distance between the adjacent data lines is too small, the data line to which the gray-scale signal is input later may interfere with the data line to which the gray-scale signal is input earlier, that is, the data line to which the gray-scale signal is input earlier may interfere with the data line to which the gray-scale signal is input later.

For example, with the structure shown in fig. 3, if gray-scale signals are input at the same time at first by D4, D2 and D5, and then gray-scale signals are input at the same time by D1, D3 and D6, no mutual interference will occur among D4, D2 and D5, and no mutual interference will occur among D1, D3 and D6; for D2, D1 and D2 are two data lines satisfying the predetermined condition, and therefore are interfered by the gray scale signal at D1, and for D5, D3 and D5 are two data lines satisfying the predetermined condition, and therefore are interfered by the gray scale signal at D3.

Therefore, in the embodiment of the present invention, when determining the sub-pixel to be compensated, the method may specifically include:

determining the input sequence of the gray scales of the sub-pixels in each row as follows: gray scales are input into each row of sub-pixels arranged at intervals at the same time, and the gray scales are input into two rows of sub-pixels arranged adjacently in sequence;

when the distance between any two adjacent data lines meets a preset condition, sub-pixels to be compensated exist in the display panel, and in the sub-pixels correspondingly connected with the data lines meeting the preset condition, other sub-pixels except the sub-pixel of the last input gray scale are determined as the sub-pixels to be compensated.

The preset condition may refer to the description in the above description, and is not described herein again.

Referring to fig. 3, if the gray scale signals are simultaneously input at first by D4, D2 and D5, and then the gray scale signals are simultaneously input by D1, D3 and D6, since D1 and D2 are data lines satisfying a predetermined condition, the sub-pixel corresponding to D2 is the sub-pixel to be compensated, and since D3 and D5 are data lines satisfying a predetermined condition, the sub-pixel corresponding to D5 is the sub-pixel to be compensated.

Of course, fig. 3 is only an example, and it is also possible that D1, D3, and D6 input gray scale signals at the same time first, and D4, D2, and D5 input gray scale signals at the same time later, and the present invention is not limited thereto as long as gray scales are input at the same time according to the sub-pixels in each row arranged at intervals, and gray scales are input in the order of inputting gray scales successively by the sub-pixels in two adjacent rows.

In this input sequence, as shown in fig. 4, if the distance between the six data lines at any position is smaller than the predetermined threshold, if Rn-1, Bn-1, Gn inputs gray scale signals at the same time first, then Gn-1, Rn, Bn inputs gray scale signals at the same time later, then Rn-1, Rn, Bn inputs gray scale signals at the same time, the data line inputting gray scale signals at the later will interfere with the data line inputting gray scale signals at the earlier time, so that Rn-1, Bn-1, Gn will be interfered by the adjacent data lines, that is, Bn-1 will be interfered by the left side Gn-1 and the right side Rn, so the coupling capacitance between Bn-1 and the adjacent data lines is the coupling capacitance formed between Gn-1 and Rn and Bn-1, respectively. As for Gn, interference from the left side Rn and the right side Bn is received, so the coupling capacitance between Gn and the adjacent data line is the coupling capacitance formed between Rn and Bn and Gn, respectively.

That is, the coupling capacitance between the data line correspondingly connected to the sub-pixel to be compensated and the adjacent data line may include: the compensation circuit comprises a coupling capacitor between a data line correspondingly connected with the sub-pixel to be compensated and an adjacent data line on the left side, and a coupling capacitor between a data line correspondingly connected with the sub-pixel to be compensated and an adjacent data line on the right side.

Accordingly, when determining the specific sub-pixels, as shown in fig. 4, if Rn-1, Bn-1, Gn inputs gray scale signals at the same time first, then Gn-1, Rn, Bn inputs gray scale signals at the same time later, then the sub-pixels correspondingly connected to Rn-1, Bn-1, Gn are the sub-pixels to be compensated, taking the sub-pixel Bm (n-1) to be compensated as an example, and the specific sub-pixels are Gm (n-1) and Rmn; taking the sub-pixel Gmn to be compensated as an example, the specific sub-pixels are Rmn and Bmn.

That is, the input order of the gray levels of the sub-pixels in each row is: every row of sub-pixels arranged at intervals inputs the gray scale at the same time, and when every two adjacent rows of sub-pixels input the gray scale successively, the specific sub-pixels comprise: the specific sub-pixels positioned at the left side and the right side of the sub-pixel to be compensated have different colors.

Moreover, when determining the gray scale difference after determining the specific sub-pixel, the manner of determining the gray scale difference is the same as that given in the above description, which can be referred to in detail, and is not described herein again.

Optionally, in order to implement gray scale compensation on the sub-pixels to be compensated and improve the display effect, in the embodiment of the present invention, the input sequence of the gray scale of each row of sub-pixels sequentially is: when the same-color sub-pixels are arranged in rows and columns, the gray scale compensation value of the sub-pixel to be compensated is determined according to the determined coupling capacitance and the gray scale difference value, and the method can specifically comprise the following steps:

calculating a gray scale compensation value of the sub-pixel to be compensated by adopting the following formula;

V_Gnm＝(△V_Rnm×C_{n_GRL}+△V_Bnm×C_{n_GBR})/C_Gn；

V_Rnm＝(△V_B(n-1)m×C_{n_RBL}+△V_Gnm×C_{n_RGR})/C_Rn；

V_Bnm＝(△V_Gnm×C_{n_BGL}+△V_R(n+1)m×C_{n_BRR})/C_Bn；

wherein, V_GnmRepresents the gray-scale compensation value V of the green sub-pixel to be compensated in the m-th row of the green sub-pixels in the n-th row_RnmRepresents the gray-scale compensation value V of the red sub-pixel to be compensated in the m-th row of the red sub-pixels in the n-th row_BnmRepresents the gray scale compensation value, DeltaV, of the blue sub-pixel to be compensated in the mth row of blue sub-pixels_RnmIndicating the gray scale difference, Δ V, between the red sub-pixel of the m-th row and the red sub-pixel of the m-1 th row in the red sub-pixels of the n-th row_R(n+1)mIndicating the gray scale difference value between the red sub-pixel of the m-th row and the red sub-pixel of the m-1 th row in the red sub-pixels of the n +1 th column, DeltaV_BnmRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-th row, DeltaV_B(n-1)mRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-1 th row, DeltaV_GnmRepresenting the gray scale difference between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the green sub-pixels of the n-th row, C_{n_GRL}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel of the nth column and the data line correspondingly connected with the red sub-pixel of the nth column adjacent to the left side, C_{n_GBR}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel in the nth column and the data line correspondingly connected with the blue sub-pixel in the nth column adjacent to the right side, C_{n_RBL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RGR}Number of red sub-pixels in the nth columnCoupling capacitance between the data line and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the right side, C_{n_BGL}Represents the coupling capacitance between the data line correspondingly connected with the blue sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the left side, C_{n_BRR}Represents the coupling capacitance between the data line correspondingly connected with the blue sub-pixel in the nth column and the data line correspondingly connected with the red sub-pixel in the (n + 1) th column adjacent to the right side, C_RnA basic capacitance C of the data line correspondingly connected with the red sub-pixel in the nth column_GnA basic capacitance C of the data line correspondingly connected with the green sub-pixel in the nth column_BnAnd the basic capacitance of the data line correspondingly connected with the nth column of blue sub-pixels is represented, n is not less than 1, and m is not less than 0.

For example, in conjunction with the partial schematic diagram shown in fig. 3, for ease of understanding and explanation, the sub-pixels are labeled, and the labeling result can be seen in the lower right corner of the sub-pixels; for the sub-pixel P5 to be compensated connected to D2, the following formula is combined: v_P5＝[(V_P3-V_P4)×C_D2-D1+(V_P7-V_P8)×C_D2-D3]/C_D2. Since only D1-D3 are located in the hole digging region W, and D1 and D2 are located in the left side border region and D3 is located in the right side border region of the hole digging region W, respectively, for D2, the distance between D1 and D2 is small, and the distance between D3 and D2 is large, so the coupling capacitance between them is small and negligible, therefore, the above calculation formula can be further expressed as: v_P5＝[(V_P3-V_P4)×C_D2-D1]/C_D2. And due to V_P3And V_P4The values of (A) and (B) are both derived from the driver IC, so that both values can be obtained from the driver IC, C_D2-D1The coupling capacitance between D2 and D1 can be obtained by the capacitance calculation formula_D2Is the basic capacitance on D2 (such as the coupling capacitance between D2 and other signal lines), therefore, the compensation value V needed by P5 can be calculated_P5So that the compensation is performed in advance and then the compensated gray scale is inputted into the P5 before the gray scale signal is inputted into the P5 through the D2 to improve the display effect.

Therefore, the pixel compensation method provided by the embodiment of the invention does not need to improve the structure of the display panel, and only needs to calculate the compensation value of the sub-pixel to be compensated in advance, and then the compensation value is automatically compensated by the driving IC and then input into the corresponding sub-pixel to be compensated, so that the direct compensation of the driving IC is realized, a simple, convenient, fast and low-cost implementation scheme is provided for implementing the pixel compensation, and a favorable reference is provided for improving the display effect of the display panel.

The following describes the pixel compensation method provided by the embodiment of the present invention with specific embodiments.

Step a, determining a sub-pixel to be compensated in a pixel of a display panel according to the input sequence of the gray scale of each row of sub-pixels in the display panel and the distance between any two adjacent data lines;

specifically, step a may be implemented by:

determining the input sequence of the gray scale of each row of sub-pixels;

The input sequence of the gray scale of each row of sub-pixels can be as follows: inputting gray scales simultaneously by each row of sub-pixels with the same color, and inputting gray scales successively by each row of sub-pixels with different colors; alternatively, the input sequence of the gray levels of the sub-pixels in each row can be: and gray scales are input into each row of sub-pixels arranged at intervals at the same time, and gray scales are input into two rows of sub-pixels arranged adjacently in sequence.

B, determining the coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and at least one adjacent data line;

wherein, the coupling capacitance may include: and coupling capacitors between the data lines correspondingly connected with the sub-pixels to be compensated and the data lines correspondingly connected with the corresponding specific sub-pixels, wherein the specific sub-pixels are adjacent sub-pixels in the same row with the sub-pixels to be compensated.

C, determining the gray scale of the sub-pixel positioned at the periphery of the sub-pixel to be compensated;

wherein, step c can be realized by the following steps:

determining the gray scale of the previous sub-pixel adjacent to the specific sub-pixel in the same column; the gray scale input time of the specific sub-pixel is later than that of the adjacent previous sub-pixel in the same row;

determining the gray scale difference value between the specific sub-pixel and the previous sub-pixel adjacent to the same column.

It should be noted that the order of steps b and c is interchangeable and not limited to the execution order of the two steps in this embodiment.

And d, compensating the gray scale of the sub-pixel to be compensated according to the coupling capacitor and the gray scale of the sub-pixel positioned at the periphery of the sub-pixel to be compensated.

Wherein, step d can be realized by the following steps:

determining a gray scale compensation value of the sub-pixel to be compensated according to the coupling capacitor determined in the step b and the gray scale difference determined in the step c;

the calculation formula of the gray scale compensation value is related to the input sequence of the gray scale, that is, different gray scale input sequences, and the calculation formula of the corresponding gray scale compensation value is different, which can be specifically referred to above.

And compensating the gray scale of the sub-pixel to be compensated according to the gray scale compensation value of the sub-pixel to be compensated.

Wherein the gray scale compensation value is determined according to the coupling capacitance between the data line and at least one adjacent data line which are correspondingly connected with the sub-pixel to be compensated and the gray scale difference value, that is, the gray scale compensation value is determined according to the interference of the sub-pixels around the sub-pixel to be compensated on the sub-pixel to be compensated, therefore, in the specific compensation process, if the sub-pixels around generate positive interference on the sub-pixel to be compensated, the sub-pixel to be compensated is subjected to negative compensation, namely, the absolute value of the gray scale compensation value is subtracted before the gray scale is input to the sub-pixel to be compensated, the compensated gray scale is input to the sub-pixel to be compensated after the subtraction, if the sub-pixels around generate negative interference on the sub-pixel to be compensated, the sub-pixel to be compensated is subjected to positive compensation, the absolute value of the gray scale compensation value is added before the gray scale is input to the sub-pixel to be compensated, and the compensated gray scale is input to the sub-pixel to be compensated after the addition, therefore, the gray scale of the sub-pixel to be compensated is compensated and adjusted adaptively so as to improve the display effect.

Based on the same inventive concept, the embodiment of the invention also provides a pixel compensation device, which is applied to a display panel, wherein the display panel comprises a non-display area, a display area and a hole digging area, the non-display area surrounds the display area, and the display area surrounds the hole digging area; the display panel also comprises a plurality of data lines which are arranged in parallel, and at least part of the data lines pass through the hole digging area.

Since the implementation principle of the pixel compensation device is similar to that of the aforementioned pixel compensation method, reference may be made to the above-mentioned implementation principle of the pixel compensation method for a specific implementation of the pixel compensation device, and repeated details are not repeated.

Specifically, as shown in fig. 7, the pixel compensation apparatus provided in the embodiment of the present invention may include:

a determining unit 701, configured to determine a sub-pixel to be compensated in a pixel of a display panel;

the compensation unit 702 is configured to compensate the gray scale of the sub-pixel to be compensated according to the coupling capacitance between the data line and the adjacent data line correspondingly connected to the sub-pixel to be compensated, and the gray scale of the sub-pixel located around the sub-pixel to be compensated.

Optionally, the determining unit 701 is specifically configured to determine a sub-pixel to be compensated in a pixel of the display panel according to an input order of gray scales of sub-pixels in each column in the display panel and a distance between any two adjacent data lines.

Optionally, each pixel in the display panel comprises: when the red sub-pixel, the green sub-pixel and the blue sub-pixel are provided, and one row of sub-pixels has only one color, the determining unit 701 specifically determines the input sequence of the gray scale of each row of sub-pixels as follows: each row of red sub-pixels, each row of green sub-pixels and each row of blue sub-pixels; wherein, each row of sub-pixels with the same color inputs the gray scale at the same time; determining whether the distance between any two adjacent data lines meets a preset condition; when the distance between any two adjacent data lines is determined to meet a preset condition, determining that sub-pixels to be compensated exist in the display panel, and determining each red sub-pixel and each green sub-pixel which are correspondingly connected with the data lines meeting the preset condition as the sub-pixels to be compensated; wherein, a column of sub-pixels is correspondingly connected with a data line.

Optionally, the preset conditions are: the distance between any position of two adjacent data lines is smaller than a preset threshold value;

the data lines meeting the preset conditions are: the data line passes through the hole digging area, and the data line which is adjacent to the data line passing through the hole digging area and is positioned outside the hole digging area.

Optionally, the compensation unit 702 is specifically configured to determine a coupling capacitance between a data line and an adjacent data line, where the sub-pixel to be compensated is correspondingly connected to the data line; determining the gray scale of a specific sub-pixel adjacent to the sub-pixel to be compensated in the same row; wherein, the input sequence of the gray scales of the sub-pixels in each row is determined to be: when each row of red sub-pixels, each row of green sub-pixels and each row of blue sub-pixels are arranged, and when the sub-pixels to be compensated are the red sub-pixels to be compensated, the specific sub-pixels are the green sub-pixels and the blue sub-pixels which are in the same row as the red sub-pixels to be compensated and are adjacent left and right; when the sub-pixel to be compensated is the green sub-pixel to be compensated, the specific sub-pixel is a blue sub-pixel which is in the same row as the green sub-pixel to be compensated and is adjacent to the green sub-pixel on the left and the right; determining the gray scale of the previous sub-pixel adjacent to the specific sub-pixel in the same column; the gray scale input time of the specific sub-pixel is later than that of the adjacent previous sub-pixel in the same row; determining a gray scale difference value between a specific sub-pixel and a previous sub-pixel adjacent to the specific sub-pixel in the same row; determining a gray scale compensation value of the sub-pixel to be compensated according to the determined coupling capacitance and the gray scale difference value; and compensating the gray scale of the sub-pixel to be compensated according to the gray scale compensation value of the sub-pixel to be compensated.

Optionally, the coupling capacitance between the data line correspondingly connected to the sub-pixel to be compensated and the adjacent data line includes: and coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and at least one adjacent data line.

Optionally, for the red sub-pixel to be compensated, the coupling capacitor includes: coupling capacitors between the data lines correspondingly connected with the red sub-pixels to be compensated and two adjacent data lines on the left side and the right side respectively;

for the green sub-pixel to be compensated, the coupling capacitor comprises: and coupling capacitors are arranged between the data lines correspondingly connected with the green sub-pixels to be compensated and the adjacent data lines on the left side and the right side respectively.

Optionally, the compensation unit 702 is specifically configured to calculate a gray-scale compensation value of the sub-pixel to be compensated by using the following formula;

V_Gnm＝(△V_B(n-1)m×C_{n_GBL}+△V_Bnm×C_{n_GBR})/C_Gn；

wherein, V_RnmRepresents the gray-scale compensation value V of the red sub-pixel to be compensated in the m-th row of the red sub-pixels in the n-th row_GnmIndicating the gray scale compensation value, DeltaV, of the green sub-pixel to be compensated in the m-th row of the green sub-pixels in the n-th row_G(n-1)mRepresents the gray scale difference value between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the green sub-pixels of the n-1 th row, DeltaV_GnmIndicating the gray scale difference, Δ V, between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the n-th row of green sub-pixels_B(n-1)mRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-1 th row, DeltaV_BnmRepresenting the gray scale difference between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-th row, C_{n_RGL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RGR}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the right side, C_{n_RBL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RBR}Represents the coupling capacitance between the correspondingly connected data line in the red sub-pixel of the nth column and the correspondingly connected data line of the blue sub-pixel of the nth column adjacent to the right side, C_{n_GBL}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_GBR}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel in the nth column and the data line correspondingly connected with the blue sub-pixel in the nth column adjacent to the right side, C_RnA basic capacitance C of the data line correspondingly connected with the red sub-pixel in the nth column_GnAnd the basic capacitance of the data line correspondingly connected with the green sub-pixel in the nth column is represented, n is not less than 1, and m is not less than 0.

Based on the same inventive concept, the embodiment of the invention also provides a pixel compensation device of a display panel, wherein the display panel comprises a non-display area, a display area and a hole digging area, the non-display area surrounds the display area, and the display area surrounds the hole digging area; the display panel also comprises a plurality of data lines which are arranged in parallel, and at least part of the data lines pass through the hole digging area; as shown in fig. 7, the pixel compensation device may include:

a compensation unit 702, configured to determine a coupling capacitance between a data line and at least one adjacent data line, where the sub-pixel to be compensated is correspondingly connected; determining the gray scale of the sub-pixel positioned at the periphery of the sub-pixel to be compensated; and compensating the gray scale of the sub-pixel to be compensated according to the coupling capacitor and the gray scale of the sub-pixel positioned at the periphery of the sub-pixel to be compensated.

Optionally, the compensation unit 702 is specifically configured to determine a gray scale of a specific sub-pixel adjacent to the sub-pixel to be compensated in the same row; determining the gray scale of the previous sub-pixel adjacent to the specific sub-pixel in the same column; the gray scale input time of the specific sub-pixel is later than that of the adjacent previous sub-pixel in the same row; determining the gray scale difference value between the specific sub-pixel and the previous sub-pixel adjacent to the same column.

Optionally, the compensation unit 702 is specifically configured to determine a gray scale compensation value of the sub-pixel to be compensated according to the determined coupling capacitance and the gray scale difference value; and compensating the gray scale of the sub-pixel to be compensated according to the gray scale compensation value of the sub-pixel to be compensated.

Optionally, the determining unit 701 is specifically configured to determine whether an input order of gray scales of each column of sub-pixels and a distance between any two adjacent data lines satisfy a preset condition; when the distance between any two adjacent data lines meets a preset condition, sub-pixels to be compensated exist in the display panel, and in the sub-pixels correspondingly connected with the data lines meeting the preset condition, other sub-pixels except the sub-pixel of the last input gray scale are determined as the sub-pixels to be compensated.

Optionally, the preset threshold is 3 μm.

Optionally, the coupling capacitor comprises: and coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and the data line correspondingly connected with the corresponding specific sub-pixel.

Optionally, each pixel in the display panel includes at least three sub-pixels with different colors, and when the sub-pixels with the same color are arranged in rows and columns, the input order of the gray scale of each row of sub-pixels is: the gray scales are input to the sub-pixels in the rows with the same color at the same time, and the gray scales are input to the sub-pixels in the rows with different colors in sequence.

Optionally, each pixel comprises a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the input sequence of the gray scale of each row of sub-pixels is as follows: when each row of red sub-pixels, each row of green sub-pixels and each row of blue sub-pixels are arranged, and when the sub-pixels to be compensated are the red sub-pixels to be compensated, the specific sub-pixels are the green sub-pixels and the blue sub-pixels which are in the same row as the red sub-pixels to be compensated and adjacent to the left side, and the green sub-pixels and the blue sub-pixels adjacent to the right side; when the sub-pixel to be compensated is the green sub-pixel to be compensated, the specific sub-pixel is a blue sub-pixel which is in the same row as the green sub-pixel to be compensated and is adjacent to the green sub-pixel on the left and the right;

the compensation unit 702 is specifically configured to calculate a gray scale compensation value of the sub-pixel to be compensated by using the following formula;

V_Gnm＝(△V_B(n-1)m×C_{n_GBL}+△V_Bnm×C_{n_GBR})/C_Gn；

wherein, V_RnmRepresents the gray-scale compensation value V of the red sub-pixel to be compensated in the m-th row of the red sub-pixels in the n-th row_GnmIndicating the gray scale compensation value, DeltaV, of the green sub-pixel to be compensated in the m-th row of the green sub-pixels in the n-th row_G(n-1)mRepresents the gray scale difference value between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the green sub-pixels of the n-1 th row, DeltaV_GnmIndicating the gray scale difference, Δ V, between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the n-th row of green sub-pixels_B(n-1)mIndicating blue at column n-1The gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the color sub-pixels, delta V_BnmRepresenting the gray scale difference between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-th row, C_{n_RGL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RGR}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the right side, C_{n_RBL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RBR}Represents the coupling capacitance between the correspondingly connected data line in the red sub-pixel of the nth column and the correspondingly connected data line of the blue sub-pixel of the nth column adjacent to the right side, C_{n_GBL}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_GBR}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel in the nth column and the data line correspondingly connected with the blue sub-pixel in the nth column adjacent to the right side, C_RnA basic capacitance C of the data line correspondingly connected with the red sub-pixel in the nth column_GnAnd the basic capacitance of the data line correspondingly connected with the green sub-pixel in the nth column is represented, n is not less than 1, and m is not less than 0.

Optionally, the input order of the gray levels of the sub-pixels in each row is: and gray scales are input into each row of sub-pixels arranged at intervals at the same time, and gray scales are input into two rows of sub-pixels arranged adjacently in sequence.

Optionally, each pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the same-color sub-pixels are arranged in rows;

V_Gnm＝(△V_Rnm×C_{n_GRL}+△V_Bnm×C_{n_GBR})/C_Gn；

V_Rnm＝(△V_B(n-1)m×C_{n_RBL}+△V_Gnm×C_{n_RGR})/C_Rn；

V_Bnm＝(△V_Gnm×C_{n_BGL}+△V_R(n+1)m×C_{n_BRR})/C_Bn；

wherein, V_GnmRepresents the gray-scale compensation value V of the green sub-pixel to be compensated in the m-th row of the green sub-pixels in the n-th row_RnmRepresents the gray-scale compensation value V of the red sub-pixel to be compensated in the m-th row of the red sub-pixels in the n-th row_BnmRepresents the gray scale compensation value, DeltaV, of the blue sub-pixel to be compensated in the mth row of blue sub-pixels_RnmIndicating the gray scale difference, Δ V, between the red sub-pixel of the m-th row and the red sub-pixel of the m-1 th row in the red sub-pixels of the n-th row_R(n+1)mIndicating the gray scale difference value between the red sub-pixel of the m-th row and the red sub-pixel of the m-1 th row in the red sub-pixels of the n +1 th column, DeltaV_BnmRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-th row, DeltaV_B(n-1)mRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-1 th row, DeltaV_GnmRepresenting the gray scale difference between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the green sub-pixels of the n-th row, C_{n_GRL}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel of the nth column and the data line correspondingly connected with the red sub-pixel of the nth column adjacent to the left side, C_{n_GBR}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel in the nth column and the data line correspondingly connected with the blue sub-pixel in the nth column adjacent to the right side, C_{n_RBL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RGR}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the right side, C_{n_BGL}The data line which correspondingly connects the blue sub-pixel of the nth column and the green of the nth column adjacent to the left sideCoupling capacitance between data lines correspondingly connected to the color sub-pixels, C_{n_BRR}Represents the coupling capacitance between the data line correspondingly connected with the blue sub-pixel in the nth column and the data line correspondingly connected with the red sub-pixel in the (n + 1) th column adjacent to the right side, C_RnA basic capacitance C of the data line correspondingly connected with the red sub-pixel in the nth column_GnA basic capacitance C of the data line correspondingly connected with the green sub-pixel in the nth column_BnAnd the basic capacitance of the data line correspondingly connected with the nth column of blue sub-pixels is represented, n is not less than 1, and m is not less than 0.

Based on the same inventive concept, an embodiment of the present invention further provides a display device, as shown in fig. 8, which may include: the pixel compensation device provided by the embodiment of the invention. Wherein W represents a dug region. The display device may be: any product or component with a display function, such as a mobile phone (as shown in fig. 8), a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator. The display device can be implemented in the embodiments of the display substrate, and repeated descriptions are omitted.

The embodiment of the invention provides a pixel compensation method and a pixel compensation device of a display panel, aiming at the display panel with an excavation region, when the display region surrounds the excavation region, a sub-pixel to be compensated in the display panel can be determined firstly, and as one data line is connected with a plurality of sub-pixels, the gray scale of the sub-pixel to be compensated can be compensated by utilizing the coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and the adjacent data line and the gray scale of the sub-pixel at the periphery of the sub-pixel to be compensated, so that the display effect is improved.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A pixel compensation method of a display panel comprises a non-display area, a display area and a hole digging area, wherein the non-display area surrounds the display area, and the display area surrounds the hole digging area; the display panel also comprises a plurality of data lines which are arranged in parallel, and at least part of the data lines pass through the hole digging area; the pixel compensation method is characterized by comprising the following steps:

a) determining sub-pixels to be compensated in pixels of the display panel;

b) determining the coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and at least one adjacent data line based on the gray scale input sequence of each pixel;

c) determining the gray scales of the sub-pixels around the sub-pixel to be compensated based on the gray scale input sequence of each pixel;

d) and compensating the gray scale of the sub-pixel to be compensated according to the coupling capacitor and the gray scale of the sub-pixel positioned at the periphery of the sub-pixel to be compensated.

2. The pixel compensation method of claim 1, wherein step a) comprises:

3. The pixel compensation method of claim 2, wherein step c) comprises:

and determining the gray-scale difference value between the specific sub-pixel and the previous sub-pixel adjacent to the same column.

4. A pixel compensation method as claimed in claim 3, wherein step d) comprises:

determining a gray scale compensation value of the sub-pixel to be compensated according to the determined coupling capacitance and the gray scale difference value;

5. The pixel compensation method according to claim 4, wherein the step a) specifically comprises:

determining the input sequence of the gray scale of each row of sub-pixels;

6. The pixel compensation method according to claim 5, wherein the preset condition is: the distance between any position of two adjacent data lines is smaller than a preset threshold value;

the data lines meeting the preset conditions are: the data line passes through the hole digging area, and the data line is adjacent to the data line passing through the hole digging area and is positioned outside the hole digging area.

7. The pixel compensation method of claim 6, wherein the preset threshold is 3 μm.

8. The pixel compensation method of claim 5, wherein the coupling capacitance comprises: and the coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and the data line correspondingly connected with the corresponding specific sub-pixel.

9. The pixel compensation method of claim 8, wherein each pixel in the display panel comprises at least three sub-pixels with different colors, and when the sub-pixels with the same color are arranged in rows and columns, the gray scale of each row of sub-pixels is input in the following order: the gray scales are input to the sub-pixels in the rows with the same color at the same time, and the gray scales are input to the sub-pixels in the rows with different colors in sequence.

10. The pixel compensation method of claim 9, wherein each of the pixels comprises a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the input sequence of the gray scale of each row of sub-pixels is as follows: when each row of red sub-pixels, each row of green sub-pixels and each row of blue sub-pixels are provided, and when the sub-pixels to be compensated are the red sub-pixels to be compensated, the specific sub-pixels are the green sub-pixels and the blue sub-pixels which are in the same row as the red sub-pixels to be compensated and adjacent on the left side, and the green sub-pixels and the blue sub-pixels adjacent on the right side; when the sub-pixel to be compensated is a green sub-pixel to be compensated, the specific sub-pixel is a blue sub-pixel which is in the same row with the green sub-pixel to be compensated and is adjacent to the green sub-pixel to be compensated;

determining a gray scale compensation value of the sub-pixel to be compensated according to the determined coupling capacitance and the gray scale difference value, and specifically comprising the following steps:

calculating the gray scale compensation value of the sub-pixel to be compensated by adopting the following formula;

V_Rnm＝[△V_G(n-1)m×C_{n_RGL}+△V_Gnm×C_{n_RGR}+△V_B(n-1)m×C_{n_RBL}+

△V_Bnm×C_{n_RBR}]/C_Rn；

V_Gnm＝(△V_B(n-1)m×C_{n_GBL}+△V_Bnm×C_{n_GBR})/C_Gn；

wherein, V_RnmRepresents the gray-scale compensation value V of the red sub-pixel to be compensated in the m-th row of the red sub-pixels in the n-th row_GnmIndicating the gray scale compensation value, DeltaV, of the green sub-pixel to be compensated in the m-th row of the green sub-pixels in the n-th row_G(n-1)mIndicating a green sub-image located in the n-1 th columnThe gray scale difference, DeltaV, between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the pixel_GnmIndicating the gray scale difference, Δ V, between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the n-th row of green sub-pixels_B(n-1)mRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-1 th row, DeltaV_BnmRepresenting the gray scale difference between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-th row, C_{n_RGL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RGR}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the right side, C_{n_RBL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RBR}Represents the coupling capacitance between the correspondingly connected data line in the red sub-pixel of the nth column and the correspondingly connected data line of the blue sub-pixel of the nth column adjacent to the right side, C_{n_GBL}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_GBR}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel in the nth column and the data line correspondingly connected with the blue sub-pixel in the nth column adjacent to the right side, C_RnA basic capacitance C of the data line correspondingly connected with the red sub-pixel in the nth column_GnAnd the basic capacitance of the data line correspondingly connected with the green sub-pixel in the nth column is represented, n is not less than 1, and m is not less than 0.

11. The pixel compensation method of claim 8, wherein the gray levels of the sub-pixels in each row are inputted in the following order: and gray scales are input into each row of sub-pixels arranged at intervals at the same time, and gray scales are input into two rows of sub-pixels arranged adjacently in sequence.

12. The pixel compensation method of claim 11, wherein each of the pixels comprises a red sub-pixel, a green sub-pixel, and a blue sub-pixel, the same color sub-pixels being arranged in columns;

V_Gnm＝(△V_Rnm×C_{n_GRL}+△V_Bnm×C_{n_GBR})/C_Gn；

V_Rnm＝(△V_B(n-1)m×C_{n_RBL}+△V_Gnm×C_{n_RGR})/C_Rn；

V_Bnm＝(△V_Gnm×C_{n_BGL}+△V_R(n+1)m×C_{n_BRR})/C_Bn；

wherein, V_GnmRepresents the gray-scale compensation value V of the green sub-pixel to be compensated in the m-th row of the green sub-pixels in the n-th row_RnmRepresents the gray-scale compensation value V of the red sub-pixel to be compensated in the m-th row of the red sub-pixels in the n-th row_BnmRepresents the gray scale compensation value, DeltaV, of the blue sub-pixel to be compensated in the mth row of blue sub-pixels_RnmIndicating the gray scale difference, Δ V, between the red sub-pixel of the m-th row and the red sub-pixel of the m-1 th row in the red sub-pixels of the n-th row_R(n+1)mIndicating the gray scale difference value between the red sub-pixel of the m-th row and the red sub-pixel of the m-1 th row in the red sub-pixels of the n +1 th column, DeltaV_BnmRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-th row, DeltaV_B(n-1)mRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-1 th row, DeltaV_GnmRepresenting the gray scale difference between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the green sub-pixels of the n-th row, C_{n_GRL}The data line for indicating the corresponding connection of the green sub-pixel of the nth column corresponds to the red sub-pixel of the nth column adjacent to the leftCoupling capacitance between connected data lines, C_{n_GBR}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel in the nth column and the data line correspondingly connected with the blue sub-pixel in the nth column adjacent to the right side, C_{n_RBL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RGR}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the right side, C_{n_BGL}Represents the coupling capacitance between the data line correspondingly connected with the blue sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the left side, C_{n_BRR}Represents the coupling capacitance between the data line correspondingly connected with the blue sub-pixel in the nth column and the data line correspondingly connected with the red sub-pixel in the (n + 1) th column adjacent to the right side, C_RnA basic capacitance C of the data line correspondingly connected with the red sub-pixel in the nth column_GnA basic capacitance C of the data line correspondingly connected with the green sub-pixel in the nth column_BnAnd the basic capacitance of the data line correspondingly connected with the nth column of blue sub-pixels is represented, n is not less than 1, and m is not less than 0.

13. A pixel compensation device of a display panel, the display panel comprises a non-display area, a display area and a hole digging area, the non-display area surrounds the display area, and the display area surrounds the hole digging area; the display panel also comprises a plurality of data lines which are arranged in parallel, and at least part of the data lines pass through the hole digging area; wherein the pixel compensation device comprises:

the compensation unit is used for determining the coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and at least one adjacent data line based on the gray scale input sequence of each pixel; determining the gray scales of the sub-pixels around the sub-pixel to be compensated based on the gray scale input sequence of each pixel; and compensating the gray scale of the sub-pixel to be compensated according to the coupling capacitor and the gray scale of the sub-pixel positioned at the periphery of the sub-pixel to be compensated.

14. The pixel compensation device as claimed in claim 13, wherein the determining unit is specifically configured to determine the sub-pixels to be compensated in the pixels of the display panel according to the input order of the gray levels of the sub-pixels in each column of the display panel and the distance between any two adjacent data lines.

15. The pixel compensation apparatus of claim 14, wherein the compensation unit is specifically configured to determine a gray level of a specific sub-pixel adjacent to the sub-pixel to be compensated in the same row; determining the gray scale of the previous sub-pixel adjacent to the specific sub-pixel in the same column; the gray scale input time of the specific sub-pixel is later than that of the adjacent previous sub-pixel in the same row; and determining the gray-scale difference value between the specific sub-pixel and the previous sub-pixel adjacent to the same column.

16. The pixel compensation device according to claim 15, wherein the compensation unit is specifically configured to determine a gray-scale compensation value of the sub-pixel to be compensated according to the determined coupling capacitance and the gray-scale difference value; and compensating the gray scale of the sub-pixel to be compensated according to the gray scale compensation value of the sub-pixel to be compensated.

17. The pixel compensation device of claim 16, wherein the determining unit is specifically configured to determine an input order of gray scales of the sub-pixels in each column, and determine whether a distance between any two adjacent data lines satisfies a preset condition; when the distance between any two adjacent data lines meets a preset condition, sub-pixels to be compensated exist in the display panel, and in the sub-pixels correspondingly connected with the data lines meeting the preset condition, other sub-pixels except the sub-pixel of the last input gray scale are determined as the sub-pixels to be compensated.

18. The pixel compensation apparatus of claim 17, wherein the predetermined condition is: the distance between any position of two adjacent data lines is smaller than a preset threshold value;

19. A pixel compensation arrangement as claimed in claim 18, wherein the predetermined threshold is 3 μm.

20. The pixel compensation apparatus of claim 17, wherein the coupling capacitance comprises: and the coupling capacitance between the data line correspondingly connected with the sub-pixel to be compensated and the data line correspondingly connected with the corresponding specific sub-pixel.

21. The pixel compensation apparatus of claim 20, wherein each pixel in the display panel comprises at least three sub-pixels with different colors, and when the sub-pixels with the same color are arranged in rows and columns, the gray scale of each row of sub-pixels is input in the following order: the gray scales are input to the sub-pixels in the rows with the same color at the same time, and the gray scales are input to the sub-pixels in the rows with different colors in sequence.

22. The pixel compensation apparatus of claim 21, wherein each of the pixels comprises a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the input sequence of the gray scale of each row of sub-pixels is as follows: when each row of red sub-pixels, each row of green sub-pixels and each row of blue sub-pixels are provided, and when the sub-pixels to be compensated are the red sub-pixels to be compensated, the specific sub-pixels are the green sub-pixels and the blue sub-pixels which are in the same row as the red sub-pixels to be compensated and adjacent on the left side, and the green sub-pixels and the blue sub-pixels adjacent on the right side; when the sub-pixel to be compensated is a green sub-pixel to be compensated, the specific sub-pixel is a blue sub-pixel which is in the same row with the green sub-pixel to be compensated and is adjacent to the green sub-pixel to be compensated;

the compensation unit is specifically used for calculating a gray scale compensation value of the sub-pixel to be compensated by adopting the following formula;

V_Rnm＝[△V_G(n-1)m×C_{n_RGL}+△V_Gnm×C_{n_RGR}+△V_B(n-1)m×C_{n_RBL}+

△V_Bnm×C_{n_RBR}]/C_Rn；

V_Gnm＝(△V_B(n-1)m×C_{n_GBL}+△V_Bnm×C_{n_GBR})/C_Gn；

wherein, V_RnmRepresents the gray-scale compensation value V of the red sub-pixel to be compensated in the m-th row of the red sub-pixels in the n-th row_GnmIndicating the gray scale compensation value, DeltaV, of the green sub-pixel to be compensated in the m-th row of the green sub-pixels in the n-th row_G(n-1)mRepresents the gray scale difference value between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the green sub-pixels of the n-1 th row, DeltaV_GnmIndicating the gray scale difference, Δ V, between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the n-th row of green sub-pixels_B(n-1)mRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-1 th row, DeltaV_BnmRepresenting the gray scale difference between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-th row, C_{n_RGL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RGR}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the right side, C_{n_RBL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RBR}Represents the coupling capacitance between the correspondingly connected data line in the red sub-pixel of the nth column and the correspondingly connected data line of the blue sub-pixel of the nth column adjacent to the right side, C_{n_GBL}Represents the nth column greenCoupling capacitance between the data line correspondingly connected with the sub-pixel and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_GBR}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel in the nth column and the data line correspondingly connected with the blue sub-pixel in the nth column adjacent to the right side, C_RnA basic capacitance C of the data line correspondingly connected with the red sub-pixel in the nth column_GnAnd the basic capacitance of the data line correspondingly connected with the green sub-pixel in the nth column is represented, n is not less than 1, and m is not less than 0.

23. The pixel compensation apparatus of claim 20, wherein the gray levels of the sub-pixels in each row are inputted in the order: and gray scales are input into each row of sub-pixels arranged at intervals at the same time, and gray scales are input into two rows of sub-pixels arranged adjacently in sequence.

24. The pixel compensation apparatus of claim 23, wherein each of the pixels comprises a red sub-pixel, a green sub-pixel, and a blue sub-pixel, the same color sub-pixels being arranged in columns;

V_Gnm＝(△V_Rnm×C_{n_GRL}+△V_Bnm×C_{n_GBR})/C_Gn；

V_Rnm＝(△V_B(n-1)m×C_{n_RBL}+△V_Gnm×C_{n_RGR})/C_Rn；

V_Bnm＝(△V_Gnm×C_{n_BGL}+△V_R(n+1)m×C_{n_BRR})/C_Bn；

wherein, V_GnmRepresents the gray-scale compensation value V of the green sub-pixel to be compensated in the m-th row of the green sub-pixels in the n-th row_RnmRepresents the gray-scale compensation value V of the red sub-pixel to be compensated in the m-th row of the red sub-pixels in the n-th row_BnmRepresents the gray scale compensation value, DeltaV, of the blue sub-pixel to be compensated in the mth row of blue sub-pixels_RnmIndicating red in the nth columnThe gray scale difference, DeltaV, between the red sub-pixel of the m-th row and the red sub-pixel of the m-1-th row in the sub-pixels_R(n+1)mIndicating the gray scale difference value between the red sub-pixel of the m-th row and the red sub-pixel of the m-1 th row in the red sub-pixels of the n +1 th column, DeltaV_BnmRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-th row, DeltaV_B(n-1)mRepresents the gray scale difference value between the blue sub-pixel of the m-th row and the blue sub-pixel of the m-1 th row in the blue sub-pixels of the n-1 th row, DeltaV_GnmRepresenting the gray scale difference between the green sub-pixel of the m-th row and the green sub-pixel of the m-1 th row in the green sub-pixels of the n-th row, C_{n_GRL}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel of the nth column and the data line correspondingly connected with the red sub-pixel of the nth column adjacent to the left side, C_{n_GBR}Represents the coupling capacitance between the data line correspondingly connected with the green sub-pixel in the nth column and the data line correspondingly connected with the blue sub-pixel in the nth column adjacent to the right side, C_{n_RBL}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the blue sub-pixel of the (n-1) th column adjacent to the left side, C_{n_RGR}Represents the coupling capacitance between the data line correspondingly connected with the red sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the right side, C_{n_BGL}Represents the coupling capacitance between the data line correspondingly connected with the blue sub-pixel of the nth column and the data line correspondingly connected with the green sub-pixel of the nth column adjacent to the left side, C_{n_BRR}Represents the coupling capacitance between the data line correspondingly connected with the blue sub-pixel in the nth column and the data line correspondingly connected with the red sub-pixel in the (n + 1) th column adjacent to the right side, C_RnA basic capacitance C of the data line correspondingly connected with the red sub-pixel in the nth column_GnA basic capacitance C of the data line correspondingly connected with the green sub-pixel in the nth column_BnAnd the basic capacitance of the data line correspondingly connected with the nth column of blue sub-pixels is represented, n is not less than 1, and m is not less than 0.

25. A display device, comprising: a pixel compensation arrangement as claimed in any one of claims 13-24.